GTAC Observation Log

1. Date : 10/02/2019
2. Observation Sr. No. : 10879
3. Observer : Vishal R Gajjar, Andrew Siemion, Shami Chatterjee, Yashwant Gupta, Geoffrey C Bower, Laura Spitler, Robert Wharton, Benito Marcote, Ryan Sean Lynch, Griffin Foster, Daniel C Price, Mayuresh Surnis, Yogesh Maan, Biprateep Dey, Dave MacMahon, Nectaria Gizani, Bryan Butler
4. Observer's Email : vishalg@berkeley.edu, siemion@berkeley.edu, shami@astro.cornell.edu, ygupta@ncra.tifr.res.in, gbower@astro.berkeley.edu, lspitler@mpifr-bonn.mpg.de, rsw95@cornell.edu, marcote@jive.eu, rlynch@nrao.edu, griffin.foster@gmail.com, dan@thetelegraphic.com, mayuresh.surnis@mail.wvu.edu, maan@astron.nl, biprateep.d@niser.ac.in, davidm@berkeley.edu, ngizani@eap.gr, bbutler@nrao.edu
5. Project Name : Low-frequency follow-up of FRB 121102 from the uGMRT
6. Project Code : 35_039
7. Operator(s) : Navnath, Pramod
8. Command File : /odisk/gtac/cmd/35_039/10jan2019/35_039_1.cmd, /odisk/gtac/cmd/35_039/10jan2019/35_039_2.cmd
9. LTA File : /gsbifrdata/10feb/35_039_10feb2019_gsb.lta, /gwbifrdata1/10feb/35_039_10feb2019_gwb.lta
10. LogFlag File :  

ANTENNA SETTINGS :

11. RF Band(MHz) & Solar Attn(dB)- RF1 : 306 MHz ,RF2 : 306 MHz, SA1 : 0 dB, SA2 : 0 dB
12. Ist LO (MHz) & IVth LO (MHz): ILO1 : 255 MHz, ILO2 : 255MHz , IVLO1 : 51 MHz, IVLO2 : 51 MHz 
13. IF Attn(dB) , IF BW(MHz) & IF ALC : IF-CH1 : 4+14 dB, 32 MHz,ON, IF-CH2 : 4+14 dB, 32 MHz,ON

GSB SETTINGS :

14. GSB Host : gsbm1_shivneri
15. GSB Mode : Realtime
16. GSB LTA : 8
17. GSB CTRL : ONLINE
18. GSB Fstop : ON
19. GAIN EQ : ON
20. Stokes : Total_Intensity
21. Beam - 1 : OFF
22. Beam - 2 : OFF
23. ACQ BW : 33.333333 MHz
24. Final BW : 0 MHz; Step # 0
25. Maximum Channels : 256
26. Channel Numbers : 0:255:1
27. LO5 -1  : 149
28. LO5 -2  : 156

29. Frequency Parameters (TPA) : 306 306 255 255 51 51
30. Integration Time : 4.0265 Sec
31. No of Antennas Working(Fringing) at the beginning :29

32. Name of Non-Working Antennas (with reason for each) :
C01 : ABC time out

33. Note for Backup :

34. Start and End Time of Obs.(IST): 10 Feb 2019 17:00:00 - 10 Feb 2019 20:10:00

35. ONLINE Machine : Lenyadri

36. No of Antennas Working(Fringing) at the end :29

37. Comments (During Observations) :
------------GWB Setting---------
GPU_MODE  : Realtime
GPU_LTA  : 4
GPU_ACQ_BW  : 200.0000
GPU_FINAL_BW  : 200.0000
GPU_EDGE_FRQ  : 0
GPU_CHAN_MAX  : 2048
GPU_CHAN_NUM  : 0:2047:1
GPU_STOKES  : Total_Intensity
GPU_SIDEBAND  : 1 1
GPU_RF4  : 550  550
GPU_DDCLO4  : 0.0000  0.0000
GPU_SB4  : -1 -1
GCODE4  : 35_039
GPU_CNTRL  : ONLINE
GPU_FSTOP  : ON
GPU_BEAM_1  : PA
GPU_BEAM_2  : OFF
GPU_BEAM_3  : Voltage
GPU_BEAM_4  : OFF
GPU_BM_INT  : 8
GPU_GAINEQ  : OFF
GPU_TPA  : From GWB GUI.
GPU_BITS  : 8 Bits
GPU_FILRFI  : RFI Filterring OFF
GPU_BEAM_S  : OFF

data recording disk
On gwbh7 : /data5 and gwbh9 : /data2 

# GWB GAC configuration is as follows : 

# BEAM-1:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16
# BEAM-1:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16

# BEAM-3:130 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16
# BEAM-3:175 :: C00 C02 C03 C04 C05 C06 C08 C09 C10 C11 C12 C13 C14 E02 S01 W01 Total=16


17:00 : Started set up.
17:25 : Started command file.
 '/odisk/gtac/cmd/35_039/10jan2019/35_039_1.cmd'

17:53 : Stopped command file and started next command file.
  '/odisk/gtac/cmd/35_039/10jan2019/35_039_2.cmd'
18:58 to 19:06 : Online problem.
19:13 : Electrical power glitch to all antennas.Hence stopped command file.
19:13 : 19:35 : Electrical problem.
19:35 : Restarted command file.
20:00 : Stopped command file and observation session is over.